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2,2-Dimethylmalonic acid

Also known as: dimethylmalonic acid, 2,2-dimethylpropanedioic acid, dimethylpropanedioic acid, Propanedioic acid, 2,2-dimethyl-, RARECHEM AL BO 1448

2,2-Dimethylmalonic acid (CAS 595-46-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H8O4 and a molecular weight of 132.115 g/mol. Key properties include a melting point of 191-193 °C(lit.), a boiling point of 310.2±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 155.6±19.7 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
595-46-0
Jingsj CID
J-45588-9
Molecular Formula
C5H8O4
Molecular Weight
132.115 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point191-193 °C(lit.)
Boiling Point310.2±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point155.6±19.7 °C
Exact Mass132.042252
PSA74.60000
LogP0.14
Vapor Pressure0.0±1.4 mmHg at 25°C
Refractive Index1.476

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. David A. Evans, et al. An Improved Procedure for the Preparation of 2,2-Bis[2-[4(S)- tert-butyl-1,3-oxazolinyl]]propane [(S,S)-tert-Butylbis(oxazoline)] and Derived Copper(II) Complexes. J. Org. Chem. 1998, 63, 13, 4541-4544.

Frequently Asked Questions

What is the CAS number of 2,2-Dimethylmalonic acid?

The CAS number of 2,2-Dimethylmalonic acid is 595-46-0.

What are the molecular formula and molecular weight of 2,2-Dimethylmalonic acid?

2,2-Dimethylmalonic acid has molecular formula C5H8O4 and molecular weight 132.115 g/mol.

Is 2,2-Dimethylmalonic acid hazardous?

2,2-Dimethylmalonic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2,2-Dimethylmalonic acid?

For 2,2-Dimethylmalonic acid, Upstream Products: Dimethyl 2,2-dimethylmalonate, Dimethyl malonate, Diethyl malonate; Downstream Products: Dimethyl 2,2-dimethylmalonate, 5,5-Dimethylbarbituric acid, 2,2-Dimethyl-1,3-propanediamine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,2-Dimethylmalonic acid (CAS 595-46-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45588-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.